28768548 has 48 divisors (see below), whose sum is σ = 69386240. Its totient is φ = 9271584.

The previous prime is 28768543. The next prime is 28768567. The reversal of 28768548 is 84586782.

It is a junction number, because it is equal to n+sod(n) for n = 28768497 and 28768506.

It is not an unprimeable number, because it can be changed into a prime (28768541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65313 + ... + 65751.

Almost surely, 2^28768548 is an apocalyptic number.

It is an amenable number.

28768548 is an abundant number, since it is smaller than the sum of its proper divisors (40617692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28768548 is a wasteful number, since it uses less digits than its factorization.

28768548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 614 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The square root of 28768548 is about 5363.6319784266. The cubic root of 28768548 is about 306.4121491455.

The spelling of 28768548 in words is "twenty-eight million, seven hundred sixty-eight thousand, five hundred forty-eight".